package com.dtruth.kafka.consumer;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import com.dtruth.kafka.KafkaProperties;

import kafka.consumer.ConsumerConfig;
import kafka.consumer.ConsumerIterator;
import kafka.consumer.KafkaStream;
import kafka.javaapi.consumer.ConsumerConnector;

public class StringConsumer implements Runnable {

	private final ConsumerConnector consumer;
	private final String topic;

	public StringConsumer(String topic) {
		consumer = kafka.consumer.Consumer
				.createJavaConsumerConnector(createConsumerConfig());
		this.topic = topic;
	}

	private static ConsumerConfig createConsumerConfig() {
		Properties props = new Properties();
		props.put("zookeeper.connect", KafkaProperties.zkConnect);
		props.put("group.id", "test");
		props.put("zookeeper.session.timeout.ms", "40000");
		props.put("zookeeper.sync.time.ms", "200");
		props.put("auto.commit.interval.ms", "1000");
		ConsumerConfig cc = new ConsumerConfig(props);
		cc.autoOffsetReset();
		return cc;
	}

	@Override
	public void run() {
		Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
		topicCountMap.put(topic, new Integer(1));
		Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap = consumer
				.createMessageStreams(topicCountMap);
		KafkaStream<byte[], byte[]> stream = consumerMap.get(topic).get(0);
		ConsumerIterator<byte[], byte[]> it = stream.iterator();
		while (it.hasNext()) {
			String msg = new String(it.next().message());

			System.out.println(this.topic + ":" + msg);
		}

	}

	public static void main(String[] args) {
		Thread read = new Thread(new StringConsumer("READ"));
		Thread label = new Thread(new StringConsumer("LABEL"));
		read.start();
		label.start();
	}
}
